2009•China Animal Husbandry & Veterinary MedicineRequires access

Microsatellite Analysis of the Genetic Polymorphism in 13 Sheep Breeds and 1 Hybrid Group in Xinjiang

Xiaozhong Yang

Abstract

The genetic polymorphism of 7 microsatellites in 13 sheep breeds and 1 hybrid group in Xinjiang was determinated.Number of alleles,average effective number of alleles(E) of each breeds were counted.According to alleles frequencies of 7 microsatellites,polymorphism information content(PIC),mean heterozygosity(H) and genetic distances were calculated for each breeds.The dendrograms were obtained based on genetic distances.The results showed that 7 microsatellite loci were high polymorphic,so the 7 microsatellite loci were effective markers for analysis of genetic relationship among sheep breeds.The phylogenetic relationship between different sheep breeds was in accord with their resource,breeding history and localities.

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Key concepts: Microsatellite, Biology, Loss of heterozygosity, Allele, Genetics, Genetic distance, Dendrogram, Genetic relationship